A B737-300 during a heavy check the right engine CSD was drained and the filter replaced. CSD oil wa...

Attributes
ACN	695600
Time
Date	200604
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
ASRS Report	695600
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far
Independent Detector	aircraft equipment other aircraft equipment : csd low oil press warning other other : 1
Resolutory Action	other
Consequence	other other
Factors
Maintenance	contributing factor : work cards performance deficiency : logbook entry performance deficiency : inspection performance deficiency : non compliance with legal requirements performance deficiency : scheduled maintenance
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

On or about the night of apr/wed/06; I had a right motor in which the CSD was drained; chip detectors checked in-line and internal CSD filter changed and wet spline svced. Upon servicing; I did the engine oil wet spline and starter oil when servicing the CSD. Found CSD cart to be empty. Went and got oil and filled cart as required. I must have inadvertently forgot to service the CSD. I thought I had svced all items. I then moved on to the check. When it was complete; I moved to forward cargo. To keep this from happening again; I will write it down if I leave in the middle of a job.

Original NASA ASRS Text

Title: A B737-300 DURING A HVY CHK THE R ENG CSD WAS DRAINED AND THE FILTER REPLACED. CSD OIL WAS NOT SVCED.

Narrative: ON OR ABOUT THE NIGHT OF APR/WED/06; I HAD A R MOTOR IN WHICH THE CSD WAS DRAINED; CHIP DETECTORS CHKED IN-LINE AND INTERNAL CSD FILTER CHANGED AND WET SPLINE SVCED. UPON SVCING; I DID THE ENG OIL WET SPLINE AND STARTER OIL WHEN SVCING THE CSD. FOUND CSD CART TO BE EMPTY. WENT AND GOT OIL AND FILLED CART AS REQUIRED. I MUST HAVE INADVERTENTLY FORGOT TO SVC THE CSD. I THOUGHT I HAD SVCED ALL ITEMS. I THEN MOVED ON TO THE CHK. WHEN IT WAS COMPLETE; I MOVED TO FORWARD CARGO. TO KEEP THIS FROM HAPPENING AGAIN; I WILL WRITE IT DOWN IF I LEAVE IN THE MIDDLE OF A JOB.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

A B737-300 during a heavy check the right engine CSD was drained and the filter replaced. CSD oil was not svced.